CVE-2019-20875 : What You Need to Know

A vulnerability has been detected in earlier versions of Mattermost Server where a password reset can be initiated while an email address is being modified.

Understanding CVE-2019-20875

This CVE identifies a security issue in Mattermost Server versions prior to 5.9.0, 5.8.1, 5.7.3, and 4.10.8.

What is CVE-2019-20875?

This vulnerability allows a password reset to proceed while an email address is being changed in affected versions of Mattermost Server.

The Impact of CVE-2019-20875

The vulnerability could potentially lead to unauthorized password resets and compromise user accounts.

Technical Details of CVE-2019-20875

This section provides more technical insights into the CVE.

Vulnerability Description

An issue in Mattermost Server before versions 5.9.0, 5.8.1, 5.7.3, and 4.10.8 allows password resets during email address modifications.

Affected Systems and Versions

Mattermost Server versions prior to 5.9.0, 5.8.1, 5.7.3, and 4.10.8

Exploitation Mechanism

The vulnerability can be exploited by initiating a password reset while changing the email address, potentially leading to unauthorized access.

Mitigation and Prevention

Protect your systems and data from this vulnerability with the following steps:

Immediate Steps to Take

Upgrade Mattermost Server to version 5.9.0, 5.8.1, 5.7.3, or 4.10.8 to mitigate the issue.
Monitor user accounts for any unauthorized password reset attempts.

Long-Term Security Practices

Implement multi-factor authentication to enhance account security.
Regularly review and update security policies and procedures to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Mattermost.
Apply patches promptly to ensure your systems are protected against known vulnerabilities.